The insider said, "Barbara swears she and Justin are just platonic friends. Nothing happened between Barbara and Justin — they’re just friends. Barbara acts really, really young. She’s gorgeous, but she acts young. Justin wouldn’t be attracted to her because she’s such a baby. They’re both just kids."

Well, considering that the Biebs and Sel were together and smooching over the holidays, including a couples ski trip with Taylor Swift and Harry Styles, we're going to believe the Palvin source who says that there is no sneaky bidness going on between The Biebs and Barbs. It would have been fun to call them "Biebera," though!

PopCrushers, what do you think? Is this a case of where there's smoke, there's a four-alarm fire? Or are Biebs and Sel rock solid, and not even a leggy lingerie model could pull 'em apart?